001/** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.activemq.xbean; 018 019import java.beans.PropertyEditorManager; 020import java.net.MalformedURLException; 021import java.net.URI; 022 023import org.apache.activemq.broker.BrokerContextAware; 024import org.apache.activemq.broker.BrokerFactoryHandler; 025import org.apache.activemq.broker.BrokerService; 026import org.apache.activemq.spring.SpringBrokerContext; 027import org.apache.activemq.spring.Utils; 028import org.apache.activemq.util.IntrospectionSupport; 029import org.apache.activemq.util.URISupport; 030import org.apache.xbean.spring.context.ResourceXmlApplicationContext; 031import org.apache.xbean.spring.context.impl.URIEditor; 032import org.slf4j.Logger; 033import org.slf4j.LoggerFactory; 034import org.springframework.beans.BeansException; 035import org.springframework.beans.FatalBeanException; 036import org.springframework.beans.factory.xml.XmlBeanDefinitionReader; 037import org.springframework.context.ApplicationContext; 038import org.springframework.context.ApplicationContextAware; 039import org.springframework.core.io.Resource; 040 041/** 042 * 043 */ 044public class XBeanBrokerFactory implements BrokerFactoryHandler { 045 private static final transient Logger LOG = LoggerFactory.getLogger(XBeanBrokerFactory.class); 046 047 static { 048 PropertyEditorManager.registerEditor(URI.class, URIEditor.class); 049 } 050 051 private boolean validate = true; 052 public boolean isValidate() { 053 return validate; 054 } 055 056 public void setValidate(boolean validate) { 057 this.validate = validate; 058 } 059 060 public BrokerService createBroker(URI config) throws Exception { 061 String uri = config.getSchemeSpecificPart(); 062 if (uri.lastIndexOf('?') != -1) { 063 IntrospectionSupport.setProperties(this, URISupport.parseQuery(uri)); 064 uri = uri.substring(0, uri.lastIndexOf('?')); 065 } 066 067 ApplicationContext context = createApplicationContext(uri); 068 069 BrokerService broker = null; 070 try { 071 broker = (BrokerService)context.getBean("broker"); 072 } catch (BeansException e) { 073 } 074 075 if (broker == null) { 076 // lets try find by type 077 String[] names = context.getBeanNamesForType(BrokerService.class); 078 for (int i = 0; i < names.length; i++) { 079 String name = names[i]; 080 broker = (BrokerService)context.getBean(name); 081 if (broker != null) { 082 break; 083 } 084 } 085 } 086 if (broker == null) { 087 throw new IllegalArgumentException("The configuration has no BrokerService instance for resource: " + config); 088 } 089 090 SpringBrokerContext springBrokerContext = new SpringBrokerContext(); 091 springBrokerContext.setApplicationContext(context); 092 springBrokerContext.setConfigurationUrl(uri); 093 broker.setBrokerContext(springBrokerContext); 094 095 // TODO warning resources from the context may not be closed down! 096 097 return broker; 098 } 099 100 protected ApplicationContext createApplicationContext(String uri) throws MalformedURLException { 101 Resource resource = Utils.resourceFromString(uri); 102 LOG.debug("Using " + resource + " from " + uri); 103 try { 104 return new ResourceXmlApplicationContext(resource) { 105 @Override 106 protected void initBeanDefinitionReader(XmlBeanDefinitionReader reader) { 107 reader.setValidating(isValidate()); 108 } 109 }; 110 } catch (FatalBeanException errorToLog) { 111 LOG.error("Failed to load: " + resource + ", reason: " + errorToLog.getLocalizedMessage(), errorToLog); 112 throw errorToLog; 113 } 114 } 115 116}